KoolMore KM-RUF-21S Convertible Upright Freezer 21 Cu Ft
- Capacity: 21 cu ft
- Number Of Shelves: 4
- Door Orientation: Right
- Installation Type: Freestanding
Last refreshed Jun 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0C6V4KR4SModel: KM-RUF-21SCategory: Upright Freezers
Colors Available
Need a different one? Pick on Amazon →
Overview
The KoolMore KM-RUF-21S is a 21 cu ft upright appliance that switches between refrigerator and freezer mode with a button, built for garages, outdoor kitchens or as overflow storage for a household kitchen fridge.
Rather than being simply a fridge or a freezer, this is designed to be swapped between the two depending on the season or the household's current need, backed by four cold settings and an electronic control panel.
- 21 cu ft convertible fridge or freezer in one cabinet
- Four adjustable shelves plus two clear drawers
- Four cold settings with quick-swap mode button
- Adjustable legs and 2 rear rolling wheels
Pros and cons
- Switches between fridge and freezer mode at the push of a button
- 21 cu ft capacity with four adjustable shelves and two drawers
- Rolling wheels and adjustable legs simplify placement
- One reviewer's unit never held temperature consistently
- Fewer drawers than higher-end fridge models
- Commercial repair support can be hard to find locally
Performance notes
Switching between fridge and freezer mode is handled by a quick-swap button on the electronic control panel, alongside four cold settings for fine-tuning within either mode.
Specifications
| Brand | KoolMore |
|---|---|
| Model | KM-RUF-21S |
| Dimensions & fit | |
| Door Orientation | Right |
| Item Weight | 225 poundshigher than 90% of 30 upright freezers |
| Item Dimensions D x W x H | 28.9 × 32.7 × 76.7 inches |
| Capacity & performance | |
| Capacity | 21 cu fthigher than 96% of 29 upright freezers |
| Power & efficiency | |
| Voltage | 120 voltshigher than 71% of 29 upright freezers |
| Construction & materials | |
| Number Of Shelves | 4 |
| Color | Silver |
| Compatibility & installation | |
| Installation Type | Freestanding |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 1 year |
| Other details | |
| Specification Met | CSA |
Closest rivals on specs
Kenmore KKUF21-W Convertible Upright Freezer 21 Cu Ft- Item Weight 225 vs 180 pounds (+25%)
Kenmore KKUF17-W Convertible Upright Freezer 17 Cu Ft- Capacity 21 vs 17 cu ft (+24%)
Frigidaire Professional FPFU19F8WF Upright Freezer 19 Cu Ft- Capacity 21 vs 18.9 cu ft (+11%)
- Item Weight 225 vs 300 pounds (-25%)
Frequently asked questions
Is it suitable for a garage in cold climates?
One owner reports it operating reliably through extreme cold temperatures in an Iowa garage.
Is it built for commercial use?
It is marketed as a household appliance; one commercial buyer had trouble finding a repair technician willing to service it because it wasn't classified as commercial equipment.